Appendix F - Abbreviations
LTPH-SM-1052-04
86
July 14, 2002
HMS-358 List 5 and List 6
R
RAI:
Remote Alarm Indication
RFL:
Remote Facility Loopback
RLOS:
Remote Loss of Signal
RTL:
Remote Terminal Loopback
S
S1:
Slide Switch
SELV:
Safety Extra Low Voltage
SID:
Shelf Identifier
SSC2:
Special Signaling Channel 2
STS-1:
Synchronous Transport Signal 1
SVC:
Switched Virtual Circuit
T
TAO:
Terminal Access Option
TL1:
Transaction Language 1
TLB:
Terminal Loopback
TLOS:
Transmit Loss of Signal
V
VTG:
Virtual Tributary Group
VTS:
Virtual Tributary Slot
X
X.25:
Communications network standard